I presonaly would stay strong and fight them its my town and I want to keep it.

So this is my account:

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First when the new neighbors moved in I would be cautious of them but still try to be friendly. Then when the deaths start to happen I would start suspecting something is wrong and take precautions to help me in case it was an epidemic or a serial killer. By buying supplies (food, water, weapons, medicine/medical supplies), but still go about my day as always. As more of the town dies I would start suspecting people and would worry about friends and would help comfort them as there loved ones passed on, getting angrier by the day as to whats going on. Then when the Doctor reveils the shiki and what they have done at the festival I would help them kill all of those blood sucking murderers without remorse.